Chemically resistant composite structures and garments produced

Details Chemically resistant composite structures and garments produced Chemically resistant composite structures and garments produced

1987-12-09

1989-09-12

Herbert, Thomas J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428245, 428252, 428284, 428286, 428287, 428421, 428422, B32B 702, B32B 2708

Patent

active

048659037

ABSTRACT:
A flexible, impermeable, universally chemically resistant composite structure which may be fabricated into protective clothing useful, for example, in the handling and clean up of hazardous chemicals is provided for, which composite structure comprises a fabric substrate, and thermally-melt-bonded on both sides thereof, a coated film, which coated film comprises a PTFE film having a thermoplastic fluoropolymer coating on both sides thereof. Preferably, the fabric substrate of the composite structure has been treated with an antiwicking agent.
A method for forming such composite structures is provided for, which method comprises thermally-melt-bonding a PTFE film having a thermoplastic fluoropolymer coating on both sides thereof to each side of a fabric substrate.
Articles of protective clothing are also provided for which are fabricated from the subject composite structures.

REFERENCES:
patent: 3513064 (1970-05-01), Westley
patent: 3547765 (1970-12-01), Snyder et al.
patent: 4165404 (1979-08-01), Quehl
patent: 4610918 (1986-09-01), Effenberger et al.

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